Home / 20,804.26-28,709.76-11,852.14

Finding the Fourth Proportional to 20,804.26, 28,709.76 and 11,852.14

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Solution

The fourth proportional to 20,804.26, 28,709.76 and 11,852.14 is: 16,355.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,804.26 : 28,709.76 = 11,852.14 : x
  2. Step 2: Convert to fraction form
    20,804.26/28,709.76 = 11,852.14/x
  3. Step 3: Cross multiply
    20,804.26x = 28,709.76 × 11,852.14
  4. Step 4: Simplify right side
    20,804.26x = 340,272,094.89
  5. Step 5: Solve for x
    x = 340,272,094.89/20,804.26
  6. Step 6: Final answer
    x = 16,355.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.